package com.wzy.netty.core.tcp;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.util.CharsetUtil;

import java.nio.charset.Charset;

/**
 * 描述
 * 创建人    Wzy
 * 创建时间: 2020-05-23  1:06
 */
public class MyClientHandler extends SimpleChannelInboundHandler<ByteBuf> {
    private int count;

    @Override
    public void channelActive(ChannelHandlerContext ctx) throws Exception {
        //使用客户端发送10条数据helloserver
        for (int i = 0; i < 10; i++) {
            ByteBuf buf = Unpooled.copiedBuffer("hello,server" + i, Charset.forName("utf-8"));
            ctx.writeAndFlush(buf);
        }
    }

    @Override
    protected void channelRead0(ChannelHandlerContext ctx, ByteBuf msg) throws Exception {
        byte[] buffer = new byte[msg.readableBytes()];
        msg.readBytes(buffer);
        String message = new String(buffer, CharsetUtil.UTF_8);
        System.out.println("客户端接收到消息:" + message);
        System.out.println("客户端接搜消息数量=" + (++this.count));
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        cause.printStackTrace();
        ctx.close();
    }
}
